@article{1093957059,
author = {Soboci\'nski, Boles\l aw},
title = {A contribution to the axiomatization of Lewis' system ${\rm S}5$.},
journal = {Notre Dame J. Formal Logic},
volume = {3},
number = {1},
year = {1962},
pages = { 51-60},
language = {en},
url = {http://dml.mathdoc.fr/item/1093957059}
}
Sobociński, Bolesław. A contribution to the axiomatization of Lewis' system ${\rm S}5$.. Notre Dame J. Formal Logic, Tome 3 (1962) no. 1, pp. 51-60. http://gdmltest.u-ga.fr/item/1093957059/